Mitsubishi Electric Melservo MR-J3-A Instruction Manual page 62

3. SIGNALS AND WIRING
(8) MR-J3-11KA4 to MR-J3-22KA4
(Note 8)
Stepdown
transformer
NFB
3-phase
380 to
480VAC
Emergency stop
(Note 4)
Servo-on
Note 1. Always connect P-P
2. When using the regenerative option, refer to section 12.2.
3. For the encoder cable, use of the option cable is recommended. Refer to section 12.1 for selection of the cable.
4. For the sink I/O interface. For the source I/O interface, refer to section 3.7.3.
5. Refer to section 3.10.
6. There is no BW if HA-LP11K24 is used.
7. For the cooling fan power supply, refer to section 3.10.2 (3) (b).
8. Stepdown transformer is required for coil voltage of magnetic contactor more than 200V class.
Servo motor Emergency
thermal relay
stop
Trouble
RA2
RA1
MC
Regenerative
resistor
CN1
EMG
SON
DOCOM
. (Factory-wired.) When using the power factor improving DC reactor, refer to section 12.13.
1
ON
OFF
MC
Servo amplifier
TE
L
1
L U
2
L V
3
C W
(Note 5)
(Note 2)
P
(Note 1)
P
1
PE
L
11
L
21
CN2
Encoder cable
CN1
DOCOM
DICOM
ALM
3 - 9
MC
SK
Servo motor
Dynamic
break
U
V
M
W
(Note 3)
Encoder
Cooling fan
OHS1
24VDC
power supply
RA2
24VDC
Trouble
RA1
(Note 7)
Cooling fan
power supply
BU
BV
BW
(Note 6)
OHS2
Servo motor
thermal relay
(Note 4)